Paul Brian Geffert
Position
Graduate Student Researcher
A link to my CV.
Physics
A Search for New Physics in b-tagged dijet and multi-jet events with Missing Energy in pp collisions at 7 TeV
(alpht_T + b-tag)
CMS SUS-10-011 (RA1b)
I have been responsible for setting the limits in a SUSY search in the single lepton + jets + MET channel.
CMS SUS-11-015 (RA4)
The update with the entire 2011 dataset is almost public.
**Put link here when available.
SUSY search in single lepton + jets + MET + multiple b-tags
Work is just beginning on this.
Physics Talks
CMS Leptonic SUSY Meeting 9/24/09:
Correlation Between alphaT and HT
CDF SUSY Meeting 2/24/10:
Correlation Between alphaT and HT in Z+jet Events
CMS SUSY Meeting 4/27/10:
alphaT and its HT Dependence in 7 TeV Data
CMS SUSY Meeting 6/10/10:
alphaT and its HT Dependence in 7 TeV Data
CMS SUSY Meeting 7/06/10:
alphaT and its HT Dependence in 7 TeV Data: Update with more Data
CMS SUSY Meeting 11/09/10:
Pre-approval talk: Hadronic search with alphaT (RA1)
I presented slides 45-68 of this talk.
CMS SUSY Meeting 1/11/11:
Pre-approval talk: Hadronic search with alphaT and b-tagging (RA1b)
CMS Hadronic SUSY Meeting 1/27/11:
Pre-approval Follow-up: Hadronic search with alphaT and b-tagging (RA1b)
CMS General Weekly Meeting 2/23/11:
Approval talk: SUS-10-011 Search for New Physics in b-tagged di-jets and multijets events with Missing Energy (RA1b)
APS April Meeting, LHC SUSY searches section 5/1/11:
Search for New Physics using the alphaT variable in multi-jet events using b-tagging
CMS SUSY Single Lepton analysis meeting 4/24/12:
RA4 Lepton Polarization and Lepton Spectrum Simplified Model limit comparison
Joint presentation with Loukas Gouskos. I presented slides 18-28.
Hardware
I work on the HCAL sub-detector of CMS. I am currently focused on quality assurance testing of the Silicon Photomultipliers (SiPM) that are going to be installed in the Hadronic Outer (HO) partition during the 2013 shutdown.
Talks:
CMS HCAL DPG 8/15/11:
First look at pulse timing studies
CMS HCAL PFG2 8/30/11:
New energy reco - Use of pulse timing
CMS HCAL PFG2 9/6/11:
New energy reco - Pulse shape template fit
CMS HCAL DPG 9/26/11:
Signal processing
CMS HCAL PFG2 11/08/11:
Pulse Energy Reconstruction with Weights
CMS HCAL Integration 3/27/12:
Results from B28 data taking (Shared talk with Aram Apyan)
Papers/Documents
CMS Analysis Note: CMS AN-2009/155. Updated 1/11/10:
Correlation Between alphaT and HT in Z+jets Events
CDF Note 10131: Posted 4/15/10:
Correlation Between alphaT and HT Using Z+jets Events at CDF II
CMS Analysis Note: CMS AN-2010/157. Updated 7/14/10 (v6):
alphaT and its HT Dependence in 7 TeV Data
CMS Physics Analysis Summary: CMS PAS SUS-10-001. Posted 7/21/10
Performance of Methods for Data-Driven Background Estimation in SUSY Searches
This is a public document representing the work of many people in the CMS SUSY group. I contributed figure 2, which shows the HT dependence of alphaT in various samples.
This work was described in the ICHEP talk Early LHC data preparations for beyond-the-standard-model searches at CMS given by Didar Dobur on July, 23 2010.
CMS Analysis Note: CMS AN-2010/338. Updated 3/14/11:
SUSY Search in b-tagged Multi-jet Events
CMS Physics Analysis Summary: CMS PAS SUS-10-011. Public 4/13/11
Search for Supersymmetry in Final States with b Jets and Missing Energy at the LHC
CMS Paper: SUS-10-011. Published by JHEP 7/26/11. Volume 2011, Number 7, 113, DOI: 10.1007/JHEP07(2011)113
Search for supersymmetry in events with b jets and missing transverse momentum at the LHC
CMS Physics Analysis Summary: CMS PAS SUS-11-015. Public 9/9/11
Search for supersymmetry in pp collisions at sqrt(s)=7 TeV in events with a single lepton, jets, and missing transverse momentum
My home page when I was an undergraduate at Texas A&M is here.
Address
Office: Broida 5122
Mail: Physics Department
University of California
Santa Barbara, CA 93106-9530
Phone: (805)893-3125
FAX: (805)893-8597
E-Mail: pbgeff@hep